Okapi at TREC-2.
Stephen E. RobertsonSteve WalkerSusan JonesMicheline Hancock-BeaulieuMike GatfordPublished in: TREC (1993)
Keyphrases
- retrieval effectiveness
- test collection
- document retrieval
- information retrieval
- information retrieval systems
- pseudo relevance feedback
- retrieval model
- language model
- relevance feedback
- query expansion
- okapi bm
- question answering
- tf idf
- expert search
- relevance judgments
- latent semantic indexing
- average precision
- blog opinion retrieval
- relevant documents
- document collections
- data sets
- trec web
- query performance prediction
- text retrieval
- query terms
- ir evaluation
- evaluation campaigns
- learning to rank
- machine learning